// 
// Copyright(c) 2009 Syntext, Inc. All Rights Reserved.
// Contact: info@syntext.com, http://www.syntext.com
// 
// This file is part of Syntext Serna XML Editor.
// 
// COMMERCIAL USAGE
// Licensees holding valid Syntext Serna commercial licenses may use this file
// in accordance with the Syntext Serna Commercial License Agreement provided
// with the software, or, alternatively, in accorance with the terms contained
// in a written agreement between you and Syntext, Inc.
// 
// GNU GENERAL PUBLIC LICENSE USAGE
// Alternatively, this file may be used under the terms of the GNU General 
// Public License versions 2.0 or 3.0 as published by the Free Software 
// Foundation and appearing in the file LICENSE.GPL included in the packaging 
// of this file. In addition, as a special exception, Syntext, Inc. gives you
// certain additional rights, which are described in the Syntext, Inc. GPL 
// Exception for Syntext Serna Free Edition, included in the file 
// GPL_EXCEPTION.txt in this package.
// 
// You should have received a copy of appropriate licenses along with this 
// package. If not, see <http://www.syntext.com/legal/>. If you are unsure
// which license is appropriate for your use, please contact the sales 
// department at sales@syntext.com.
// 
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// 
#include "proputils/EnvPropertyReader.h"
#include "common/PropertyTree.h"
#include "common/StringTokenizer.h"
#include "common/StringCvt.h"
#include "common/RefCntPtr.h"

#if defined(_MSC_VER) 
# if (_MSC_VER <= 1300)
#  define ENVIRON _environ
# else
#  define ENVIRON environ
# endif
#else // _WIN32
# define ENVIRON environ
extern char** ENVIRON;
#endif // _WIN32

USING_COMMON_NS;

namespace PropUtils {

void readEnvProperties(COMMON_NS::PropertyNode* to,
                       const COMMON_NS::String& prefix,
                       bool override)
{
    String pref = prefix.lower();
    for (const char* const* p = ENVIRON; 0 != *p; ++p) {
        String es = from_local_8bit(*p);
        if (es.left(prefix.length()).lower() != pref)
            continue;
        int idx = es.find('=');
        if (idx <= 0)
            continue;
        const Char* eq  = &es[idx];
        const Char* esp = es.unicode() + prefix.length();
        to->makeDescendant(String(esp, eq - esp).lower(),
            String(eq + 1, &es[es.length()] - eq - 1), override);
    }
}

} // namespace PropUtils
